Method for extracting coarse oil from coix seed with hypercritical carbon dioxide
A carbon dioxide and supercritical technology, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems of high cost, unsafe production operation, easy to pollute the environment, etc., and achieve the effect of low cost, safe production operation and high yield
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[0010] Below through embodiment, the technical solution of this invention is described further in detail.
[0011] 1. 24L scale supercritical extraction
[0012] 1. Main parameters: the feeding amount is about 13.0Kg; the crushed particle size of coix seed is 20 mesh, and the raw material moisture is 9.58%; the temperature / pressure of the extraction kettle is 36~38℃ / 21.0~22.5MPa; the temperature / pressure of the separation column 47~55℃ / 8.5~13.0Mpa; desorption kettle temperature / pressure 26~50℃ / 4.5~6.5MPa; CO 2 The instantaneous flow rate is 65~110L / h; the extraction time is 3h.
[0013] serial number
[0014] 2. The relationship between parameters and acid value and yield
[0015] 1) The result of the influence of the pressure of the extraction kettle: because the extraction is limited by the batch, the influence of the pressure on the acid value is based on a small test and is not obvious.
[0016] batch number
[0017] It can be seen from the above tab...
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